diff --git a/nix/sources.json b/nix/sources.json
index 874fdea..236d611 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -54,10 +54,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "85abeab48b5feda4b163e5bb32f50aad1164e415",
-        "sha256": "1nslb5p6cf5z691pf52j8bf880sdgav1fcf7bxjk3rad92bniq5g",
+        "rev": "8e78c2cfbae71720869c35b6710d652bf28b37cc",
+        "sha256": "178dr6bz71lbv0ljynvvkrc2p0lwqmci482brkqdw9qfx3sc1a7f",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/85abeab48b5feda4b163e5bb32f50aad1164e415.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/8e78c2cfbae71720869c35b6710d652bf28b37cc.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }